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Configuration Guide - Reliability

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.
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(Optional) Enabling Ping to a Virtual IP Address

(Optional) Enabling Ping to a Virtual IP Address


The device allows user devices to ping a virtual IP address for the following purposes:
  • Monitoring the operating status of the master in a VRRP group
  • Ensuring the reachable route between a user device and a network connected through a default gateway that uses the virtual IP address

If ping to a virtual IP address is enabled, a device on an external network can ping the virtual IP address. This exposes the device to ICMP-based attacks. You can use the undo vrrp virtual-ip ping enable command to disable the ping function.


  1. Run:


    The system view is displayed.

  2. Run:

    vrrp virtual-ip ping enable

    The ping to a virtual IP address is enabled.

    By default, the ping function is enabled, and the master in a VRRP group responds to ping packets sent to the virtual IP address.

Updated: 2019-08-21

Document ID: EDOC1000141941

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